308554483986961 has 9 divisors (see below), whose sum is σ = 308722767455739. Its totient is φ = 308386292227536.

The previous prime is 308554483986919. The next prime is 308554483986971. The reversal of 308554483986961 is 169689384455803.

The square root of 308554483986961 is 17565719.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 229974343659025 + 78580140327936 = 15164905^2 + 8864544^2 .

It is not a de Polignac number, because 308554483986961 - 2⁹ = 308554483986449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (308554483986901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 43440019536 + ... + 43440026638.

Almost surely, 2^{308554483986961} is an apocalyptic number.

308554483986961 is the 17565719-th square number.

308554483986961 is the 8782860-th centered octagonal number.

It is an amenable number.

308554483986961 is a deficient number, since it is larger than the sum of its proper divisors (168283468778).

308554483986961 is an frugal number, since it uses more digits than its factorization.

308554483986961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19152 (or 9576 counting only the distinct ones).

The product of its (nonzero) digits is 5374771200, while the sum is 79.

The spelling of 308554483986961 in words is "three hundred eight trillion, five hundred fifty-four billion, four hundred eighty-three million, nine hundred eighty-six thousand, nine hundred sixty-one".